try {
  layui.use(['form'], function () {
    var form = layui.form;
    form.verify({
      max32: function (value, item) {
        if (value.length > 32 && value.length != 0) {
          return '不能超过32个字符';
        }
      },
      max255: function (value, item) {
        if (value.length > 255 && value.length != 0) {
          return '不能超过255个字符';
        }
      },
      pass: function (value, item) {
        if (value.length < 6) {
          return '密码最少为6位';
        }
      },
      phoneV: function (value, item) { //value：表单的值、item：表单的DOM对象
        if (value != "") {  //值不是空的时候再去走验证
          if (!/^1[3|4|5|7|8]\d{9}$/.test(value)) {
            return '请输入正确的手机号';
          }
        }
      },
      identityV: function (value, item) { //value：表单的值、item：表单的DOM对象
        if (value != "") {  //值不是空的时候再去走验证
          if (!/(^\d{15}$)|(^\d{17}(x|X|\d)$)/.test(value)) {
            return '请输入正确的身份证号';
          }
        }
      }
    });
  });

  $(function () {
    var canvas = document.querySelector('canvas'),
      ctx = canvas.getContext('2d')
    canvas.width = $(window).width();
    canvas.height = $(window).height();
    ctx.lineWidth = .3;
    ctx.strokeStyle = (new Color(150)).style;

    var mousePosition = {
      x: 30 * canvas.width / 100,
      y: 30 * canvas.height / 100
    };

    var dots = {
      nb: 250,
      distance: 100,
      d_radius: 150,
      array: []
    };

    function colorValue(min) {
      return Math.floor(Math.random() * 255 + min);
    }

    function createColorStyle(r, g, b) {
      return 'rgba(' + r + ',' + g + ',' + b + ', 0.8)';
    }

    function mixComponents(comp1, weight1, comp2, weight2) {
      return (comp1 * weight1 + comp2 * weight2) / (weight1 + weight2);
    }

    function averageColorStyles(dot1, dot2) {
      var color1 = dot1.color,
        color2 = dot2.color;

      var r = mixComponents(color1.r, dot1.radius, color2.r, dot2.radius),
        g = mixComponents(color1.g, dot1.radius, color2.g, dot2.radius),
        b = mixComponents(color1.b, dot1.radius, color2.b, dot2.radius);
      return createColorStyle(Math.floor(r), Math.floor(g), Math.floor(b));
    }

    function Color(min) {
      min = min || 0;
      this.r = colorValue(min);
      this.g = colorValue(min);
      this.b = colorValue(min);
      this.style = createColorStyle(this.r, this.g, this.b);
    }

    function Dot() {
      this.x = Math.random() * canvas.width;
      this.y = Math.random() * canvas.height;

      this.vx = -.5 + Math.random();
      this.vy = -.5 + Math.random();

      this.radius = Math.random() * 2;

      this.color = new Color();
    }

    Dot.prototype = {
      draw: function () {
        ctx.beginPath();
        ctx.fillStyle = this.color.style;
        ctx.arc(this.x, this.y, this.radius, 0, Math.PI, false);
        ctx.fill();
      }
    };

    function createDots() {
      for (i = 0; i < dots.nb; i++) {
        dots.array.push(new Dot());
      }
    }

    function moveDots() {
      for (i = 0; i < dots.nb; i++) {
        var dot = dots.array[i];
        if (dot.y < 0 || dot.y > canvas.height) {
          dot.vx = dot.vx;
          dot.vy = -dot.vy;
        } else if (dot.x < 0 || dot.x > canvas.width) {
          dot.vx = -dot.vx;
          dot.vy = dot.vy;
        }
        dot.x += dot.vx;
        dot.y += dot.vy;
      }
    }

    function connectDots() {
      for (i = 0; i < dots.nb; i++) {
        for (j = 0; j < dots.nb; j++) {
          i_dot = dots.array[i];
          j_dot = dots.array[j];

          if ((i_dot.x - j_dot.x) < dots.distance && (i_dot.y - j_dot.y) < dots.distance && (i_dot.x - j_dot.x) > -dots.distance && (i_dot.y - j_dot.y) > -dots.distance) {
            if ((i_dot.x - mousePosition.x) < dots.d_radius && (i_dot.y - mousePosition.y) < dots.d_radius && (i_dot.x - mousePosition.x) > -dots.d_radius && (i_dot.y - mousePosition.y) > -dots.d_radius) {
              ctx.beginPath();
              ctx.strokeStyle = averageColorStyles(i_dot, j_dot);
              ctx.moveTo(i_dot.x, i_dot.y);
              ctx.lineTo(j_dot.x, j_dot.y);
              ctx.stroke();
              ctx.closePath();
            }
          }
        }
      }
    }

    function drawDots() {
      for (i = 0; i < dots.nb; i++) {
        var dot = dots.array[i];
        dot.draw();
      }
    }

    function animateDots() {
      ctx.clearRect(0, 0, canvas.width, canvas.height);
      moveDots();
      connectDots();
      drawDots();
      requestAnimationFrame(animateDots);
    }

    $('canvas').on('mousemove', function (e) {
      mousePosition.x = e.pageX;
      mousePosition.y = e.pageY;
    });

    $('canvas').on('mouseleave', function (e) {
      mousePosition.x = canvas.width / 2;
      mousePosition.y = canvas.height / 2;
    });

    createDots();
    requestAnimationFrame(animateDots);

  });
} catch (e) {
}